Adopting a single layer integral body structure and applying bending technology on the side of the body to increase the torsional strength of the equipment, it has low vibration and high stability during operation, extending the service life of the equipment and enhancing the aesthetic design of the machine appearance. The unique dual roll polishing chamber is designed side by side, saving floor space. Two polishing chambers feed simultaneously, with one chamber supporting two. It can also be processed with a single roll according to actual output, achieving the processing capability of one machine for multiple uses. Extended mirror 304 stainless steel material polishing roller, high processing accuracy to avoid bran powder sticking to the roller, and high wear-resistant 304 stainless steel screen for better whitening effect.